In multivariate Cox's regression analysis, we found that STS patients with elevated uPAR-S antigen levels possessed a 3.5-fold increased risk of tumour-related death (RR=3.5, 95% CI=1.5–8.3, P=0.004) compared with patients with low uPAR-S concentrations (Table 3). The gene discussed is PLAUR; the disease is neoplasm.